Critical round test

The purpose of this experiment is to investigate the transverse vibrations of the beams and to obtain the critical speed of the rotating axes.
When an axis whose center of mass does not coincide with the centers of its bearings rotates, large deformations occur in the axis at certain rotational speeds. This phenomenon is called rotation and the speed at which this phenomenon occurs is called critical speed.
The test device consists of a rotating axis, two central bearings, two fixed bearings and a three-phase motor of 10,000 revolutions. A coupling is connected to the front part of the engine, which is connected to the shaft under test

Category Laboratory of machine dynamics and vibrations

Description

Description

• Shafts with different diameters
• Has standard weights
• Has a rigid structure to prevent unwanted vibrations at high speeds
• The possibility of performing various tests using various shafts and weights and different engine revolutions
• The use of transparent cover for greater safety of the three-phase AC electric motor with specific power and speed
• AC motor speed control system with inverter
• Korea Atonix optocoupler for distance measurement
• Digital display of the engine speed using Korea Atonics display
• Has teaching powerpoint and student agenda and calculations
• The structure of the device has electrostatic paint